Detachable handle for saws.



No. 694,555; Patented Mar. 4,1902.

' E. L. LAHERTY.

DETACI'IABLE HANDLE FOB SAWS.

lApplicM-ion filed Dec. 10, 1901.)

(No Model.)

UNITED STATES PATENT OFFICE.

EDI/VARD L. LAHERTY, OF VERDI, NEVADA, ASSIGNOR OF NINE-TIVEN- TIETHSTOJOHN F. CONDON, OF VERDI, NEVADA.

DETACHABLE HANDLE FOR SAWS.

SPECIFICATION forming part of Letters Patent No. 694,555, dated March 4,1902.

Application filed December 10,1901. Serial No. 85,359. (No model.)

To all whom it may concerm Be it known that I, EDWARD L. LAHERTY, acitizen of the United States, residing at Verdi, county of Washoe, Stateof .Nevada, have invented an Improvenientin Detachable Handles for Saws;and I hereby declare the following to be a full, clear, and exactdescription of the same.

My invention relates to handles for saws; and it is especially designedfor that class known as crosscut-saws.

It consists of a sleeve or socket-piece fixed and projecting at rightangles from the handle, having a bar or plate at the outer endapproximately parallel with the handle, said plate having a groove inits front edge, into which the end of the saw-blade may fit.- The holethrough the sleeve is made oval, and a split bolt passes through thehole, said bolt having a pin projecting from one half and a socket intowhich the pin enters in the other half. The rear end of the bolt isscrew-thread ed and is provided with a nut by which it may be drawn backand the edge of the saw locked in the grooved face. The oval bolt-holeallows the elastic sides of the split bolt to separate when they standin a vertical direction, so that the pin is withdrawn from its socketsufficiently to allow the saw to be introduced or removed. When the sawis in place, by turning it and the pin at right angles the sides of thebolt are forced together by the narrower diameter of the hole and thesaw is firmly locked in position.

Referring to the accompanying drawings, Figure 1 is part elevation andpart longitudinal section of my invention. Fig. 2 is a top View of thesplit bolt. Fig. 3 is a front View of the socket-piece. Q

A is the handle, here shown as of that class designed for crosscut-saws.

2 is a hollow socket-piece riveted or otherwise fastened'to the handleand projecting at right angles therefrom. This socket-piece has a plate3 uponthe front end at right angles with itself and essentially parallelwith the handle A. This plate has grooves or channels made at rightangles, as at 4 and 5. These grooves serve to receive the end of thesawblade 6 when it is in position, and when it is drawn tight againstthe face of the plate it Willbe locked and rigid in one of thesegrooves. Through the socket-piece 2 is made a hole 7, which'is oval,having its major axis in line with the groove or channel at and thegreater length of the plateB.

8 is a bolt screw-thread ed at the rear end to receive a nut 9. Thisbolt has its front end split and the split extending so far rearwardlythat the sides of the bolt will separate by their own elasticity whenrelieved of pressure. One of the split halves of the front end of thebolt has in it a pin 10 and the other has a socket made in it, as at 11,in line with the pin, so that when the bolt is closed together the pin10 enters the socket 11.

The saw-blade has a hole or holes made in it, as at 12, and at such adistance from the end that when the blade is in place, with its endfitting a groove or channel in the plate 3, the pin 10 may pass throughone of the holes '12, and by closing the split sides of the bolttogether the saw will be rigidly clamped in place.

The operation of introducing or removing the saw will be as follows: Thenut 9 is turned backward, so that the bolt 8 can be pushed forward, andwhen thus pushed forward and lying with the splitportion horizontal thetwo halves of the bolt will be in line with the major axis of the ovalhole 7 in the socket-piece. The elasticity of these two parts causesthem to separate, so that the pin 10 is withdrawn from the hole 11 ofthe opposite half. In this condition the end of the saw may beintroduced-into the space betweenthe two halves, and when the hole 12 ofthe saw registers with the pin the saw is turned, and with it the bolt,which is thus brought with the two halves in line with the shorterdiameter of the hole 7.

This closes the two halves together and forces the pin 10 into the hole11, thus preventing the saw from being withdrawn. By then turning thenut 9 and drawing the bolt backwardly the rear end of the saw will bedrawn into the slot at and firmly locked to the handle. The

length of the socket 2 is sufficieut'to allow the necessary space forthe fingers between the handle and the end of the saw.

If it be desired to use the saw transversely, it can be locked in thisposition by turning the nut 9 until the end of the saw engages thetransverse groove or channel 5 of the plate 3; but for all ordinary usethe saw-blade is locked in the first-named position and in a planeparallel with the axis of the handle.

The device is simple. The saw is easily and firmly secured by theturning of the single nut and may be instantly disengaged when it isdesired to remove it by simply loosening the nut and turning the bolt sothat the two halves are allowed to open into the longer diameter of thehole through the socket-piece 2, when the pin 10 will be withdrawn fromthe hole 11 and the saw can be removed.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In ahaudle and holder for saws, a socketpiece having one end fixeddirectly to and projecting from the handle said piece having formedintegral with its opposite end a channeled plate and said plate andpiece having a hole through them essentially oval in shape, a split boltpassing through said hole and having one end threaded, and a nut uponsaid threaded end, one of the members of the bolt having a pin to passthrough a hole in the saw-blade and the other member having a hole toreceive said pin.

2. The combination with a saw-handle, of a holding device including asocket-piece fixed to the handle said socket-piece having a hole throughit essentially oval in cross-section, a split bolt forming jaws to graspthe saw-blade said bolt passing through said hole and capable of beingaxially turned to present the members of the bolt to each of thediameters of said hole whereby the members of the bolt are permitted toexpand or separate when brought into line with the long diameter of thehole and are closed upon the saw-blade when brought into line with thesmaller diameter of the hole, and means for securing the bolt to thehandle.

3. The combination with the handle of a saw, of a socket-pieceprojecting therefrom having a plate upon its outer end, with a groove orchannel adapted to receive the end of the saw-blade, an oval hole madethrough the socket, a split bolt passing through said hole having a pinin one half and a coincident hole in the other, said halves beingadapted to separate when turned to the line of the longer diameter ofthe hole and closable when turned to the shorter diameter whereby thesaw is locked in place.

4. The combination with a saw-handle of a socket-piece fixed theretohavingan oval hole made through it transversely to the handle, and agrooved plate at the front end adapted to receive the end of thesaw-blade, a split bolt, the front end of which is separable when inline with the longer diameter of the hole, a pin in one of the halvesadapted to pass through a hole in the saw-blade, and a coincident holein the other half, the sides of said pin being closed together byturning into the plane of the shorter diameter of the hole,screw-threads upon the rear end of the bolt and a nut by which the boltis drawn back to lock the edge of the saw-blade in the groove.

In witness whereof I have hereunto set my hand.

EDWARD L. LAI-IERTY.

Witnesses:

C. LONKEN, J. E. SOUCHEREAU.

